This book came out in January, and I just spotted it on Amazon.
Advergaming and In-Game Advertising: An Approach to the next Generation of Advertising. Not cheap, at $76. Couldn't find anything either on the book or the author. Am very curious.
[Update: Apr 5, 2007] Looks like it's a thesis (Diplomarbeiten) by a grad student at the
University of Zurich. Here's a five-page
executive summary in pdf (thanks, Stefan).